Study of rule placement schemes for minimizing TCAM space and effective bandwidth utilization in SDN

Yen Wen Chen, Yu Hsuan Lin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Software Defined Networking (SDN) provides flexible route arrangement and specific packets processing through the resided flow table. The flow table is always implemented by using ternary content addressable memory (TCAM) for fast packet matching and forwarding. In addition to the route information, TCAM provides packet processing rules to deal with packet redirection, filtering, and dropping for network security consideration. The packet filtering rules are also placed in the flow table of a specific SDN switch that the packet will pass through. If the rule can be placed at the switch that most packets are aggregated, then it will save the overall TCAM utilization. However, it will consume more link bandwidth, if the packet shall be dropped before it reaches the switch that the associated rule is placed. This paper proposes the rule placement scheme by considering the tradeoff of TCAM space utilization and the bandwidth consumption in SDN networks. Practical network topologies were adopted for exhaustive simulations. The simulation results show that the proposed scheme achieves the desired objective.

Original languageEnglish
Title of host publicationProceedings - 2018 IEEE 6th International Conference on Future Internet of Things and Cloud Workshops, W-FiCloud 2018
EditorsIrfan Awan, Muhammad Younas, Carlos Filipe Portela
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages21-27
Number of pages7
ISBN (Electronic)9781538678107
DOIs
StatePublished - 9 Oct 2018
Event6th IEEE International Conference on Future Internet of Things and Cloud Workshops, W-FiCloud 2018 - Barcelona, Spain
Duration: 6 Aug 20188 Aug 2018

Publication series

NameProceedings - 2018 IEEE 6th International Conference on Future Internet of Things and Cloud Workshops, W-FiCloud 2018

Conference

Conference6th IEEE International Conference on Future Internet of Things and Cloud Workshops, W-FiCloud 2018
Country/TerritorySpain
CityBarcelona
Period6/08/188/08/18

Keywords

  • Bandwidth Utilization
  • Flow Table
  • Software Defined Networking
  • TCAM

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